Jump range is not always about getting to somewhere fast.
Sometimes it's about getting to a system at all or not making a 11 jumps trip to get to a system that is 12.5 ly away from the start system.
The Corvette simply has a very short jump range. In my opinion the jump range is too short. Some systems in the bubble are not reachable with the Corvette in full combat outfit - it's worse if the Corvette is used as a supply ship (trader).
You want to try that one again? This IS about getting somewhere faster, pure and simple. There is no inhabited system in the bubble you can't reach with a Corvette or any other ship for that matter, this isn't about what you can or can't reach, it's about getting places faster, that's it. There are multiple ships that can't match the jump range of the Corvette and FDL, did you know that? Not all of those are combat ships either. Funny thing, it's not THOSE ships that people keep asking to have the jump range increased on, over and over again. Why is that?
I cannot believe people are still defending the stupid notion that ships must have different jump ranges for balance... The whole idea that FSD's need to be different size is absolutely ridiculous too. Even this page indicates that: http://elite-dangerous.wikia.com/wiki/Frame_Shift_Drive
The FSD should be class A, B, C, or D only. The drive weight and dimensions should not change at all. However, the fuel requirement, as stated on the page is what dictates jump distance. Aka, this is where SC has a better design.
What should dictate the jump distance is the amount of fuel you can supply to the FSD, taken directly from the Wiki page: Hyperspace jumps rely on quantum mechanics, as the destination of any given jump must be known before the jump is made, and the amount of energy needed to complete the jump is discrete.
So in reality. The actual FSD should only come in 1 size and the fuel delivery mechanism should be in different sizes, based on the ships size and hull mass weight requirements. Aka, a 250T ship should require 5T of fuel for a jump, while a Cutter at over 1000T should require 20T per same jump.
What would set the ships apart would be the size of the fuel tanks. Thus, the 1000T Cutter should be almost all fuel, aka.... how ships in KSP, and space engineers are (while try to be more realistic).
On this same concept, why in the heck did FD design the Fuel scoop... Who the heck buys a Car, Plane, boat or motorcycle that needs an additional purchase to resupply it? We figured this out pretty much the same time as we invented the gas engine!!!! Every ship should have a way to refuel it built in... fuel scooping is akin to going to the local gas station.... sun (fuel pump) fuel scoop (hose from said pump to car receptacle) fuel tank (same thing). So why on earth did you make a fuel scoop ED????
Pssst, you really should read that wiki page you linked, I mean, really read it. It's not like it lists the sizes and types of FSDs after all...oh...wait..it does exactly that! Each size, type, it's max tonnage, fuel usage and jump distance, I mean, it's almost as if, in total opposition to what you say the wiki pages shows, that FSDs DO come in different sizes and operate by specific rules based on their size. Or did you just totally miss that part of the page, which is I must admit IS easy to miss, since it's only the greater part of that page.
And SC doesn't have a better design, it has nothing to compare with the FSD, guess you missed that as well? There is no jumping by a ship in SC, you make use of naturally occurring wormholes, which ones you can use dictated by the size of the wormhole vs your ship's physical dimensions. And you don't pick where to go, you have to find a wormhole going where you want to go, which means you often have to take a long roundabout journey to get to a system that's literally next door to where you started! Some great maps for that on the SC forums btw, amazing how long some of the trips to get next door are, freaking amazing. In system, you travel via quantum drive, which IS based on your ship size btw, that's one of the component systems coming into play over the next few main builds, one of many component systems coming into play finally. And QD uses fuel, which you can't get yourself except in specific ships, of which there is 1 to date, the Starfarer, and it's not flyable yet, nor is scooping the required raw materials for making QD fuel in place yet, but it will be interesting when it's done, can't wait myself. Smashing into gas giants to get the raw hydrogen for the refineries on the Starfarer to process into QD fuel will be a blast, then again, I also get a real kick out of dancing on stars to scoop fuel in E: D, but I'm an admitted and well documented nutjob that way. QD only gets you up to 0.2c for traveling inside a system, and the systems will only be 1 billion x 1 billion x 275 thousand kilometers in size, so it's only a 4 hour flight across one at most. And people think getting to HO is a long haul.....oh man. I'm a SC backer, stay quite up to date on it, own multiple ships (LOVE my Khartu Al), my CO in SRM has the Redeemer, another one of my SRM brothers has the Starfarer, among many others(to quote him, 'I'm ankle deep in ships, dove in head first)', and I'm about to get the next concept, 1 man planetary miner, the MISC Prospector, and I'll probably get more as time goes on..so they really need to get the game done before I've spent my grandkids college funds! But people like you, thinking it's got fast travel all over and other silly misconceptions based on totally ignoring what's been stated repeatedly, amuse me no end. It's not a PvP centric game, it's actually very much like E: D in that regard, without Solo or Group mode per se, but with a PvP slider that allows you to pretty much never see anyone you don't want to see, except in unsecured lawless areas of the galaxy, slider doesn't apply in them at all. Travel will take time, longer in many cases than it does in E: D, despite being so much smaller scaled of a game world. Funny isn't it?